Vehicle wheel tire



.1. E. GILLESPIE VEHICLE WHEEL TIRE Filed May 5, 1957 Nov. 22, 1938.

2 Sheets-Sheet 1 qza a I. a a I I. I Z

ATTORNEY Nov. 22, 1938. I I -J, GILLESPlE 2,137,679

VEHICLE WHEEL TIRE Filed May 3, 1937 2 SheetsSheet 2 afizfe INVENTOR a MI WITNES%Z 9 M ATTORNEY3 Patented Nov. 22, 1938 I UNITED STATES PATENT'OF'F-I'C E VEHICLE WHEEL TIRE Jayson E. Gillespie, Lincoln, Nebr.

Application May 3, 1937, Serial No. 140,549

2 Claims. (01. 152-288) This invention relates to vehicle tires and hasis a series of spaced grooves ll extending subfor the primary object theprovision of a device stantially transversely of the plate. The groovesof this Character Which Will o fi y absorb receive the convolutions of acoiled resilient elero-ad shocks and provide maximum road tracmerit l2confining portions of each convolution 5 tion and durability and willeliminate the disadb t een the plates 8 and 9 while the other pores andacc dents Som t es Ca y tions of the convolutions contact the side Wallspunctures or b ow ts o pneumatic tires 2 of the shoe or casing. Theconvolutions of the With t es d other o je t in V oW, this coiledelement l2 are joined by a retaining strip vention consists in certainnovel features of con- I3. The retaining strip is transversely curved toit struotion, b on an a a ement of p s follow the contour of theconvolutions of the 10 to be h r inafter mo e f lly des ri ed an coiledelements and is welded or otherwise seo a m' d. cured to theconvolutions. A core 1 constructed r a C p te un d n o y vent o in theforegoing manner is capable of yielding reference is to be had to thefollowing descripto o d shock consequently absorbing said tion a d o p ydrawings, in which shocks and also is capable of withstanding vary- 15Figure 1 is a sid elevation, p r ly in se ing loads upon the tire. Atire of this character illustrating a tire constructed in accordancewith will be economical to construct and will be dury invention. ableand free of disadvantages found in pneu- Figllro 2 s an e elevation ptly in section matic tires such as punctures, blowouts and the o g thetire. like. The convolutions of the spring are welded 20 Figure 3 is atransverse sectional view taken on th plates 8 and 9 and on theretaining strip on thel e o u e I3. The flared edges of the plates 8 and9 Figure 4 is a fragmentary sectional view showpermit the spring to flexfreely. ing a coiled resilient element and a tire element It is to beunderstood that the shoe or casing 5 employed between the convolutionsof the coiled is built up about the core after the assembling element.of the latter.

Figure 5 is a fragmentary longitudinal sec- Referring to my modifiedform of the inventional view showing a grooved inner plate. tion, asshown in Figures 6 and '7, the core is Figure 6 is a transversesectional view illusindicated by the character l4 and consists oftrating a modified form of my invention. inner and outer coiled elementsl5 and l6. :0

Figure '7 is a fragmentary horizontal sectional These coiled elementsare similarly shaped and view illustrating the same. also similarlyshaped to the coil element l2 ex- Referring in detail to the drawings,the nucept that the coiled element I5 is smaller than meral I indicatesa casing or shoe including side the coiled element 16. The plates 8 and9 are walls 2 and a tread 3 in which are formed antiemployed with anadditional plate H. The 35 skid grooves 4. The side walls 2 are joined,as pe o the plate is Substantially like the shown in Figure 3. Thecasing or shoe is conplate 8 and 9 x ep i s W h is less and i structedof rubber with fabric embedded therepr vid d w v s t receive theconvoluti ns in, as indicated at 5. The fabric is composed of of thecoiled element 15. The coiled element 15 40 a series of interwoven cordsfor the purpose of is suitably secured in the grooves. Also engagedstrengthening the rubber. The side walls and with the convolutions ofthe coiled elements l5 tread formed as heretofore described provide inand ii e pla a I9 o t a sv y the shoe or casing a chamber 6 to receive acore curved and have formed in their opposed faces I capable ofexpanding the shoe or casing to grooves to receive the convolutions ofthe coiled support the latter with varying loads on the shoe elements.The convolutions may be secured in 45 or casing. The core is capable ofyielding to abthe grooves of the plates l8 and I9. sorb road shocks andconsists of spaced plates 8 What is claimed is: and 9. These platesunderlie the tread 3 and A cushion ire mpr n a yi l abl a in formed uponthe plate 8 is a series of lugs in having a chamber, annularsuperimposed plates and are embedded in the rubber of the tread arrangedin said chamber and one of said plates f 3 for the purpose of preventingthe plate 8 from having offset portions embedded in the casing, creepingwithin the shoe or casing. The plates a coiled resilient element havingthe convolutions 8 and 9 are substantially arcuately curved in thereofpassing between said plates, said plates cross section and have theedges thereof flared having grooves to receive the convolutions of saidaway from each other. Formed in the plate 9 resilient elements, and atransversely curved an- 55 to receive the convolutions of said resilientelements, and transversely curved and superimposed annular platesreceiving therebetween the convolutions of said coiled elements andpositioned opposite to the first-named plates and of a width less thanthe width of the first-named plates and having grooves in their opposingfaces to receive the convolutions of said coiled elements.

JAYSON E. GILLESPIE.

